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Changing patterns in colorectal carcinoma: a 25-year experience.
J Sariego1, M E Byrd, M Kerstein
1Department of Endoscopic Surgery, Hahnemann University, Philadelphia, Pennsylvania 19102.
The American Surgeon
|November 1, 1992
Summary
Colorectal cancer diagnosis is shifting towards earlier stages and more proximal locations. This trend is linked to increased use of surveillance colonoscopy and sigmoidoscopy for early detection.
Area of Science:
- Oncology
- Gastroenterology
- Epidemiology
Background:
- Colorectal carcinoma patterns, including stage and tumor location, have evolved over the last 25 years.
- A study reviewed 1,584 patients with colorectal cancer diagnosed at Hahnemann University Hospital between 19XX and 20XX.
Purpose of the Study:
- To analyze changes in the stage and location of colorectal carcinoma over a 25-year period.
- To investigate the correlation between diagnostic timing and disease extent or tumor site.
Main Methods:
- Retrospective review of colorectal cancer patient data.
- Analysis of diagnostic dates, disease stage, and tumor location.
Main Results:
- A significant trend towards earlier stage diagnosis of colorectal cancer was observed.
- A notable "rightward shift" in tumor location occurred, particularly in the last 15 years.
- A slight increase in the detection of rectal lesions was also noted.
Conclusions:
- The observed trends suggest earlier and more proximal colorectal cancer detection.
- Increased utilization of surveillance colonoscopy and sigmoidoscopy is a likely contributing factor to these changes.